If anyone wants a bunch of info on the Austrian Army in general (and also on it's infantry, cavalry, and artillery arms), I recommend checking out this site:
http://napoleonistyka.atspace.com/ (scroll down to Allied Armies).
Of the continental allies, Austria was considered to have the best artillery, albeit it still could not compare to that of the French. While her cavalry consisted of some of Europe's finest horsemen, they failed to operate effectively en masse as their French counterparts did. The core of the infantry were German conscripts, but also included Hungarians (as well as Serbians, Croatians, and Transylvanians) who were renowned for their fighting spirit.
Overall, the quality of the soldiers themselves ranged from decent to superb, but innovation in training and tactics was stagnant and the army in general was in a state of confusion following the wars of the first and second coalitions. The Austrian military was stuck in the past and severely handicapped in logistical, organizational, tactical, and strategic terms compared to the rapidly modernizing French, and of course the empire's cultural diversity (and resulting language barriers) did not improve matters.
Much of the above is me paraphrasing Osprey's
Armies of the Napoleonic Wars: An Illustrated History. Ed. Chris McNab. A fairly comprehensive examination of the organization, tactics, equipment, and much more, of the major Napoleonic armies (France, Britain, Austria, Russia, Prussia, Spain, Portugal, and a section on the minor participants), laden with Osprey's characteristic phenomenal illustrations. Highly recommended!
